h1,h2,h3{
    font-weight: bold;
}
h1{
    text-align: center;
}
h3{
    color: rgb(0, 34, 40);
    text-emphasis-color: rgb(255, 255, 255);
  }
.btn-outline-success{
    color: #fff;
    background-color: #fabd60;
    border-color: #f8c488;
}
.parent1 {
    height: 20px;
    margin-bottom: 20px;
}
.parent2 {
    margin: 20px 0 30px;
}
.parent3 {
    height: 20px;
    margin-top: 20px;
}
.child {
    background:#f8c488;
    height: 20px;
    margin: 40px 0 30px;
}
/*导航条*/
.navbar-brand img{
    max-width: 180px;
    min-width: 30px;
    max-height: 60px;
}
.nav-item{
    width: 100px;
    text-align: center;
}
.dropdown{
    margin-left: 20px;
}
.dropdown-menu{
    border-top: rgb(0,34,40) 4px solid;
}